Table 8.

The effects of organic matter type and profile design on root density of C. maculata at sample depth 180–330 mm (7–13 in) (back-transformed means).

Root density Lv (cm cm−3)z
CoirComposted biosolidsComposted green wasteOverall meany
Layered profiles2.32.92.72.6b
Uniform profiles2.34.55.03.9a
Overall mean2.3b3.7a3.8a

  • ↵z Trees planted in August 2000 and the experiment concluded in January 2001. Means are from six replications.

  • ↵y Overall means followed by the same letter down the column and across the row are not significantly different (P < 0.05).

  • Mean root density in unamended sand = 2.9 cm cm−3.